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List of Counties in Indiana

by · Published · Updated

Indiana has 92 counties. The most populous counties are Marion County (Indianapolis), Lake County, Allen County (Fort Wayne), Hamilton County, St. Joseph County, Elkhart County, Tippecanoe County, Vanderburgh County, Hendricks County, and Madison County. Marion County, home to the state capital Indianapolis, is the largest and serves as the state’s primary political and economic hub. Hamilton County, which is part of the Indianapolis metro area, is also growing rapidly. Other populous counties include those with major urban centers like Fort Wayne and South Bend.

Counties in Indiana

List of All Counties in Indiana

  1. Adams County, Indiana
  2. Allen County, Indiana
  3. Bartholomew County, Indiana
  4. Benton County, Indiana
  5. Blackford County, Indiana
  6. Boone County, Indiana
  7. Brown County, Indiana
  8. Carroll County, Indiana
  9. Cass County, Indiana
  10. Clark County, Indiana
  11. Clay County, Indiana
  12. Clinton County, Indiana
  13. Crawford County, Indiana
  14. Daviess County, Indiana
  15. Dearborn County, Indiana
  16. Decatur County, Indiana
  17. DeKalb County, Indiana
  18. Delaware County, Indiana
  19. Dubois County, Indiana
  20. Elkhart County, Indiana
  21. Fayette County, Indiana
  22. Floyd County, Indiana
  23. Fountain County, Indiana
  24. Franklin County, Indiana
  25. Fulton County, Indiana
  26. Gibson County, Indiana
  27. Grant County, Indiana
  28. Greene County, Indiana
  29. Hamilton County, Indiana
  30. Hancock County, Indiana
  31. Harrison County, Indiana
  32. Hendricks County, Indiana
  33. Henry County, Indiana
  34. Howard County, Indiana
  35. Huntington County, Indiana
  36. Jackson County, Indiana
  37. Jasper County, Indiana
  38. Jay County, Indiana
  39. Jefferson County, Indiana
  40. Jennings County, Indiana
  41. Johnson County, Indiana
  42. Knox County, Indiana
  43. Kosciusko County, Indiana
  44. LaGrange County, Indiana
  45. Lake County, Indiana
  46. LaPorte County, Indiana
  47. Lawrence County, Indiana
  48. Madison County, Indiana
  49. Marion County, Indiana
  50. Marshall County, Indiana
  51. Martin County, Indiana
  52. Miami County, Indiana
  53. Monroe County, Indiana
  54. Montgomery County, Indiana
  55. Morgan County, Indiana
  56. Newton County, Indiana
  57. Noble County, Indiana
  58. Ohio County, Indiana
  59. Orange County, Indiana
  60. Owen County, Indiana
  61. Parke County, Indiana
  62. Perry County, Indiana
  63. Pike County, Indiana
  64. Porter County, Indiana
  65. Posey County, Indiana
  66. Pulaski County, Indiana
  67. Putnam County, Indiana
  68. Randolph County, Indiana
  69. Ripley County, Indiana
  70. Rush County, Indiana
  71. Saint Joseph County, Indiana
  72. Scott County, Indiana
  73. Shelby County, Indiana
  74. Spencer County, Indiana
  75. Starke County, Indiana
  76. Steuben County, Indiana
  77. Sullivan County, Indiana
  78. Switzerland County, Indiana
  79. Tippecanoe County, Indiana
  80. Tipton County, Indiana
  81. Union County, Indiana
  82. Vanderburgh County, Indiana
  83. Vermillion County, Indiana
  84. Vigo County, Indiana
  85. Wabash County, Indiana
  86. Warren County, Indiana
  87. Warrick County, Indiana
  88. Washington County, Indiana
  89. Wayne County, Indiana
  90. Wells County, Indiana
  91. White County, Indiana
  92. Whitley County, Indiana

1. Allen County

Overview

Allen County is the largest county in Indiana by land area and is located in the northeastern part of the state. It is bordered by DeKalb County to the north, Whitley County to the west, and Ohio to the east. The county seat is Fort Wayne, the second-largest city in Indiana, known for its industrial base, historical significance, and vibrant cultural scene. Allen County has a diverse economy driven by manufacturing, healthcare, education, and transportation, with companies like General Motors and Steel Dynamics having a presence in the area. Established in 1824, the county has a rich history, including its role as a frontier fort during the War of 1812, and has since developed into a regional economic hub.

County Facts

  • Population: Approximately 400,000 (2023 estimate)
  • County Seat: Fort Wayne
  • Major Airports: Fort Wayne International Airport
  • Major Highways: I-69, US-30, US-24, US-33

2. Marion County

Overview

Marion County, located in central Indiana, is the most populous county in the state and home to the state capital, Indianapolis. The county is bordered by Hendricks County to the west, Hamilton County to the north, and Johnson County to the south. Indianapolis serves as the political, economic, and cultural center of Indiana, with a diverse economy that includes government services, finance, healthcare, manufacturing, and sports. Marion County is well known for hosting major sporting events such as the Indianapolis 500 and is home to key institutions like Eli Lilly and Company, the Indiana Pacers, and the Indianapolis Colts. Established in 1822, Marion County has grown into a thriving urban center with a dynamic metropolitan area.

County Facts

  • Population: Approximately 970,000 (2023 estimate)
  • County Seat: Indianapolis
  • Major Airports: Indianapolis International Airport
  • Major Highways: I-65, I-69, I-70, I-74, I-465, US-31

3. Lake County

Overview

Lake County is located in northwestern Indiana, along the shores of Lake Michigan and bordering Illinois to the west. The county seat is Crown Point, though the city of Gary is historically significant for its role in the steel industry and its proximity to Chicago. Lake County’s economy has long been driven by manufacturing, particularly steel production, with U.S. Steel and other major plants located in the region. In recent decades, the county has diversified with a growing service sector and suburban communities, benefiting from its location in the Chicago metropolitan area. Established in 1837, Lake County’s development has been shaped by its industrial roots and its access to transportation routes via Lake Michigan.

County Facts

  • Population: Approximately 490,000 (2023 estimate)
  • County Seat: Crown Point
  • Major Airports: Gary/Chicago International Airport
  • Major Highways: I-65, I-80, I-94, I-90, US-12, US-41

4. Elkhart County

Overview

Elkhart County is located in northern Indiana, bordered by Michigan to the north and Kosciusko County to the south. The county seat is Goshen, while the city of Elkhart is a key economic and manufacturing hub, particularly known for its role in the RV (recreational vehicle) industry. Elkhart County has a strong manufacturing base, with companies in the RV, musical instrument, and automotive industries. The county also has a significant Amish population, which contributes to its agricultural economy and cultural identity. Established in 1830, Elkhart County’s history is closely tied to industry, and it remains one of the most industrialized counties in the state.

County Facts

  • Population: Approximately 210,000 (2023 estimate)
  • County Seat: Goshen
  • Major Airports: Elkhart Municipal Airport
  • Major Highways: I-80, I-90, US-20, US-33

5. Tippecanoe County

Overview

Tippecanoe County is located in west-central Indiana, bordered by Carroll County to the north and Montgomery County to the south. The county seat is Lafayette, which, along with the neighboring city of West Lafayette, is home to Purdue University, one of the top public research universities in the U.S. Tippecanoe County’s economy is heavily influenced by education and research, with Purdue playing a central role in driving innovation and technology development in the area. The county also has a strong agricultural base, producing crops such as corn and soybeans. Established in 1826, Tippecanoe County is historically significant for the Battle of Tippecanoe, a key event in early U.S. history, and has grown into a center for education and industry.

County Facts

  • Population: Approximately 200,000 (2023 estimate)
  • County Seat: Lafayette
  • Major Airports: Purdue University Airport
  • Major Highways: I-65, US-52, US-231

6. Porter County

Overview

Porter County is located in northwestern Indiana, along the southern shore of Lake Michigan and east of Lake County. The county seat is Valparaiso, a city known for its historic downtown and Valparaiso University. Porter County is part of the Chicago metropolitan area and has seen steady growth due to its proximity to Chicago and its desirable suburban communities. The county’s economy is a mix of manufacturing, healthcare, education, and agriculture. Established in 1836, Porter County has a rich history, with ties to early settlement and industrial growth in the region. Today, it remains a key part of Indiana’s northern region, with natural attractions like the Indiana Dunes National Park drawing tourists.

County Facts

  • Population: Approximately 175,000 (2023 estimate)
  • County Seat: Valparaiso
  • Major Airports: Porter County Regional Airport
  • Major Highways: I-94, I-80, I-90, US-30, US-6

7. Vanderburgh County

Overview

Vanderburgh County is located in southwestern Indiana, along the Ohio River and bordered by Posey and Warrick counties. The county seat is Evansville, the third-largest city in Indiana and a regional economic center. Evansville is known for its diverse economy, which includes healthcare, manufacturing, education, and finance. The city is home to the University of Southern Indiana and several major employers, such as Berry Global and Deaconess Health System. Established in 1818, Vanderburgh County has a rich history as a river port and industrial hub, and it continues to serve as a key transportation and economic center in the tri-state region, which includes Indiana, Kentucky, and Illinois.

County Facts

  • Population: Approximately 185,000 (2023 estimate)
  • County Seat: Evansville
  • Major Airports: Evansville Regional Airport
  • Major Highways: I-69, US-41, US-62, US-66

8. St. Joseph County

Overview

St. Joseph County is located in northern Indiana, bordering Michigan to the north and Elkhart County to the east. The county seat is South Bend, a city known for being the home of the University of Notre Dame, a major educational and cultural institution. St. Joseph County has a diverse economy, with key sectors including education, healthcare, manufacturing, and retail. South Bend was historically a center of manufacturing, particularly for the Studebaker Corporation, though it has since transitioned to a more service-oriented economy. Established in 1830, the county has played a significant role in Indiana’s industrial development and remains a vibrant part of the state’s northern region.

County Facts

  • Population: Approximately 270,000 (2023 estimate)
  • County Seat: South Bend
  • Major Airports: South Bend International Airport
  • Major Highways: I-80, I-90, US-31, US-20

9. Madison County

Overview

Madison County is located in central Indiana, east of Indianapolis, and is bordered by Hamilton County to the west and Delaware County to the east. The county seat is Anderson, a city that has historically been known for its role in the automotive and manufacturing industries. Madison County’s economy today is diversified, with manufacturing, education, and healthcare playing important roles. Anderson University, a private Christian university, is a key educational institution in the county. Established in 1823, Madison County has a rich history tied to early industrialization and remains an important part of Indiana’s manufacturing landscape.

County Facts

  • Population: Approximately 130,000 (2023 estimate)
  • County Seat: Anderson
  • Major Airports: Anderson Municipal Airport
  • Major Highways: I-69, US-36, US-32

10. Monroe County

Overview

Monroe County is located in south-central Indiana, bordered by Brown County to the east and Greene County to the west. The county seat is Bloomington, home to Indiana University Bloomington, one of the largest and most prestigious public universities in the country. Monroe County’s economy is centered around education, with Indiana University serving as the primary economic driver, along with healthcare, research, and tourism. The county’s scenic landscape, including lakes, forests, and parks, adds to its appeal. Established in 1818, Monroe County has a long history of education and cultural development and continues to thrive as a center for academic and artistic activities.

County Facts

  • Population: Approximately 150,000 (2023 estimate)
  • County Seat: Bloomington
  • Major Airports: Monroe County Airport
  • Major Highways: I-69, US-37, SR-46

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